Michelle Di Leo is leaving FleishmanHillard Fishburn to join iNHouse Communications, the agency co-founded by Theresa May's former comms chief, with Fleishman announcing a hire and a promotion to shore up its corporate team.

Fleishman has also taken on senior director and partner Michael Hartt from Burson-Marsteller. He will work in a cross-practice role, leading the firm's geo-political clients. Prior to working in London for Burson for five years, he worked for Edelman as a vice president in its international affairs practice in Washington DC.

FleishmanHillard Fishburn, the UK arm of the global agency, said its London corporate practice was Fleishman's largest globally.

FleishmanHillard Fishburn CEO Jim Donaldson said the corporate practice had seen "stunning success", driven by Bailey and now has 30 staff, and went on to say: "While we’re sad to see Michelle go and thank her for the brilliant contribution she has made to the business, we’re particularly pleased to have Michael Hartt join us next week to extend the exciting work we’re doing in the geo-political arena."